Vulnerability identifier: #VU40382
Vulnerability risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-77
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Xymon
Web applications /
Remote management & hosting panels
Debian Linux
Operating systems & Components /
Operating system
Description
The vulnerability allows a remote authenticated user to execute arbitrary code.
xymond in Xymon 4.1.x, 4.2.x, and 4.3.x before 4.3.25 allow remote authenticated users to execute arbitrary commands via shell metacharacters in the adduser_name argument in (1) web/useradm.c or (2) web/chpasswd.c.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Xymon: 4.1.0 - 4.3.24
Debian Linux: 4.1.0 - 8.0
External links
http://packetstormsecurity.com/files/135758/Xymon-4.3.x-Buffer-Overflow-Code-Execution-Information-Disclosure.html
http://packetstormsecurity.com/files/153620/Xymon-useradm-Command-Execution.html
http://www.debian.org/security/2016/dsa-3495
http://www.securityfocus.com/archive/1/537522/100/0/threaded
http://sourceforge.net/p/xymon/code/7892/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.